The following are sample scores; X; 10, 12, 6, 8, 9, 11, 13, 13, 5, 0, 1 what is the mean, median, mode, range, variance?what is the value of summation (X - X-)
what is the value of summation (X - X-)2

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams